Clara, a low-level cleaning worker, is drugged and framed by her son and daughter-in-law, and mistakenly enters the secret room of mob boss Harrison, where they have a one-night stand. Harrison leaves a ring and departs. After suffering amnesia, Clara becomes a cleaning worker again, but Harrison keeps her by his side under the pretense of being his wife. The two gradually develop genuine feelings for each other within their contractual marriage. Ultimately, Clara regains her memory and dignity, punishes the villains, and truly stays with Harrison.
